Rules and Regulations

The official competition rules governing all IRONMAN and IRONMAN 70.3 events

Please note that rules may vary slightly at select events due to local laws and ordinances. Be sure to familiarize yourself with the rules published in the event athlete information guide prior to race day.

The 2019 IRONMAN Competition Rules are now available. Please note that we have made some changes to the following sections for 2019: Section 5.01 (g) and (h), Section 6.01 (d) and (e) and Appendix A.

The 2019 IRONMAN Competition Rules will take effect after March 11, 2019 in Europe, Africa, and the Americas. The 2019 Competition Rules will roll out in Asia, China and Oceania between March 11 and July 1st (please check event specific Athlete Information Guides regarding implementation of 2019 IRONMAN Competition Rules in Asia and Oceania events during this timeframe). Please note all IRONMAN and IRONMAN 70.3 events sanctioned by Triathlon Australia will not be enforcing the 2019 Competition Rules until July 1st, 2019.